Card Codex

M:tG card similarity search

17 May 2024: Card library updated.

Horizon Stone

5 · Artifact

If you would lose unspent mana, that mana becomes colorless instead.

Similar cards

Color identity:
NameManaTypeText
The Grey Havens Legendary Land When The Grey Havens enters the battlefield, scry 1. {T}: Add {C}. {T}: Add one mana of any color among legendary creature cards in your graveyard.
Geode Golem 5Artifact Creature — Golem Trample Whenever Geode Golem deals combat damage to a player, you may cast your commander from the command zone without paying its mana cost. (You still pay any additional costs.) 5/3
Lifelace GInstant Target spell or permanent becomes green. (Mana symbols on that permanent remain unchanged.)
Patron of the Nezumi 5BBLegendary Creature — Spirit Rat offering (You may cast this card any time you could cast an instant by sacrificing a Rat and paying the difference in mana costs between this and the sacrificed Rat. Mana cost includes color.) Whenever a permanent is put into an opponent's graveyard, that player loses 1 life. 6/6
Tempted by the Oriq 1UUUSorcery For each opponent, gain control of up to one target creature or planeswalker that player controls with mana value 3 or less.
Whir of Invention XUUUInstant Improvise (Your artifacts can help cast this spell. Each artifact you tap after you're done activating mana abilities pays for {1}.) Search your library for an artifact card with mana value X or less, put it onto the battlefield, then shuffle.
Eidolon of the Great Revel RREnchantment Creature — Spirit Whenever a player casts a spell with mana value 3 or less, Eidolon of the Great Revel deals 2 damage to that player. 2/2
Loafing Giant 4RCreature — Giant Whenever Loafing Giant attacks or blocks, mill a card. If a land card was milled this way, prevent all combat damage Loafing Giant would deal this turn. 4/6
Personal Decoy 5WUPlaneswalker — Duck Personal Decoy enters the battlefield with a number of loyalty counters on it equal to your life total. If it would leave the battlefield, exile it instead of putting it anywhere else. You can't be attacked. [+1]: You gain 1 life. [−4]: Draw a card. Loyalty *
Nomads en-Kor WCreature — Kor Nomad Soldier {0}: The next 1 damage that would be dealt to Nomads en-Kor this turn is dealt to target creature you control instead. 1/1
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